Bottle accessory



FIG. 1 is a perspective view of the bottle accessory showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof; the bottom view being identical to the top view.

The broken lines in the drawings illustrate the portions of the design that form no part of the claim. 

The ornamental design for a bottle accessory, as shown and described. 